Apache HTTP Server up to 2.4.51 mod_lua Multipart Parser r:parsebody out-of-bounds write
|CVSS Meta Temp Score|
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|Current Exploit Price (≈)|
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|CTI Interest Score|
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A vulnerability was found in Apache HTTP Server up to 2.4.51 (Web Server). It has been classified as critical. Affected is the function
r:parsebody of the component mod_lua Multipart Parser. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-787. The software writes data past the end, or before the beginning, of the intended buffer. The impact remains unknown.
The weakness was shared 12/20/2021. The advisory is available at httpd.apache.org. This vulnerability is traded as CVE-2021-44790 since 12/10/2021. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 12/24/2021).
Upgrading to version 2.4.52 eliminates this vulnerability.
CVSSv3VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔒
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
NVD Base Score: 🔒
ExploitingClass: Memory corruption
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceInterest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍
0-Day Time: 🔒
Upgrade: HTTP Server 2.4.52
Timeline12/10/2021 CVE reserved
12/20/2021 +10 days Advisory disclosed
12/20/2021 +0 days VulDB entry created
12/24/2021 +4 days VulDB last update
CVE: CVE-2021-44790 (🔒)
EntryCreated: 12/20/2021 03:17 PM
Updated: 12/24/2021 10:47 PM
Changes: (18) vulnerability_cvss2_nvd_basescore vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss3_nvd_basescore vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a
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